Taxonomic studies of homalomena phlippinensis and homalomena philippinensis var. rubescens ( araceae) based onmorphological and palynological studies.

Añoc, Isaac Paul B. and Maturgo, Charizza C. (2012) Taxonomic studies of homalomena phlippinensis and homalomena philippinensis var. rubescens ( araceae) based onmorphological and palynological studies. Other thesis, De La Salle University-Dasmariñas.

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Abstract

The two taxa namely Homalomena philippinensis and H. philippinensis var. rubescens were investigated using morphological and palynological studies. This study was carried out to differentiate the two taxa and solve its taxonomic circumscription. In morphological study, the qualitative and quantitative characters of both vegetative and reproductive parts were observed, measured and examined. For palynological studies, light microscopy (LM) and scanning electron microscopy (SEM) were used to observe the pollen structures. Results revealed that morphologically, two taxa are different when it comes to leaf number, leaf blade, length and width, petiole and blade color, leaf blade shape, base, variation, petiole length, inflorescence number, spathe shape and size, spathe color, stigma sessile color, fruiting spathe color and size. Pollen grains of both taxa are bilateral, inapertuarate, and smooth. They only differ in size where in H. philippinensis has larger pollen (2.61-5.68 μm) while its variety has smaller size (2.64-2.90). Based on the results, morphological and palynological studies can be used to delimit the two taxa. Other taxonomic evidences, however, such as DNA, chromosome, and anatomical studies is strongly recommended to solve the taxonomic problem of these two taxa.

Item Type: Thesis (Other)
Additional Information: BIO 1203 2012
Keywords: Taxonomic studies ; Homalomena phlippinensis.
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QK Botany
Users: College of Science and Computer Studies > Biological Science
Depositing User: Ivyjoy Viray
Date Deposited: 11 Nov 2015 09:14
Last Modified: 11 Nov 2015 09:14
URI: http://thesis.dlsud.edu.ph/id/eprint/458

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